These are not waters you want to navigate on your own.
Let’s say you buy a stock for $1,000 (your original cost basis,) ten years later let’s say it’s worth $50,000 (an appreciated asset.)
If you give that stock to somebody else or title it jointly, they maintain your cost basis when you die (there’s an exception or two here that I won’t get into.) If they sell it, they pay taxes on $49,000 worth of gains. In layman’s terms this is called “Sucking the big one.”
If you die still owning that asset, your heirs get a stepped up cost basis. This means their new basis is the cost of the stock on your DOD (date of death.) If it’s worth $50,000 that day, they can sell it and not pay any taxes. In laymen’s terms this is called “Way cool!”
If you title the asset jointly you will probably screw up this “way cool” arrangement , unless you are married and the asset is joint with your spouse. Even then there are ways to screw this up.
So you want to make sure you don’t give away things that have gone up in value. It’s generally better to die with them.
Does this mean you can give cash? Yes, up to $10,000 a year to each donee without tax consequences, as many donees as you like.
You also have to worry about gifting in contemplation of death. If the IRS decides you have done this they will disqualify the gift, and taxes may be subject to “recapture.” Recapture is like this: If you escape from a prison where you have been tortured, what do you want to avoid at all costs?
You have two primary estate planning tools if you are married. These are the “Unlimited spousal exemption” (you can give your spouse whatever you want without consequenes,) and the unified credit exemption (this is the amount you can give during your life or at death without federal tax, not counting the $10,000 a year) I think the unified credit is $650,000 now, but I would have to double check. Any assets that you own above this number are taxed at death according to Federal Estate taxes.
Assets in IRA accounts can get double taxed at death if you’re above this number.
There are excellent strategies using trusts, gifting and sound estate planning with the goal of minimizing estate taxes and passing on the largest possible portion of your estate to your heirs. Attempting to use them without fully understanding is playing with a loaded gun.
If you attempt to utilize these tools by yourself you will almost assuredly screw up, and Uncle Sam will feast on your corpse.
Estate planning can get immensely complicated very fast.
Get a lawyer or a qualified Financial planner to assist you.
By the way you are not trying to avoid probate. Nothing wrong with probate at all. It is merely the process of transferring your estate. What you are trying to avoid is estate taxes.